Language … The Four Horsemen of the Apocalypse
According to the book of Revelation (6:1-8) the “Four Horsemen of the Apocalypse” appear with the opening of the first four of the seven seals that brings forth the cataclysm of the apocalypse.
The first horseman, who rides a white horse, is a conqueror with a bow and a crown. Scholars interpret this horseman to symbolise Christ, or the Antichrist. The second horseman rides a red horse and carries a sword, symbolising war and bloodshed. The third horseman rides a black horse, and carries a balance scale, symbolising famine. The fourth horseman rides a pale horse, and is identified as Death.
Thus, the facets of the apocalypse represented are conquest, war, famine and death.
In modern idiom this language is used as a metaphor to symbolise not just the end of time, but more often the end of a period of peace, or even the end of a relationship.